ELEX MK4
Integrated stereo amplifier
The Elex MK4 is a high performance stereo integrated amplifier designed to deliver the purest musical performance. Housed in a brand new case to match the rest of the Rega range, the MK4 builds on previous Rega designs using our multi-award winning class A/B power amplifier circuit which delivers an impressive 72W per channel into 8Ω loads (90W into 6Ω). New rear connectivity options are available with the Elex MK4 now including a Rega DAC circuit with two digital inputs and a high quality headphone output conveniently located on the front panel.

BRINGING YOUR MUSIC TO LIFE
The Elex MK4 is capable of driving difficult loudspeakers with ease and will integrate perfectly into any audio system by offering a wider range of connectivity options. In addition to the line level, digital inputs and a high quality moving magnet phono stage, you will also find Pre-out and Record Out functionality alongside a headphone output. Special attention has been paid to the selection of key audio components. Discrete circuitry, high quality relays, polypropylene capacitors and Sanken output transistors are used throughout the design.
KEY FEATURES
- 72 W per channel into 8 Ω / 90 W into 6 Ω
- High quality moving magnet phono stage
- High performance Rega DAC circuit for digital inputs
- 2 x Digital inputs – 1 x optical and 1 x Co-Axial
- Headphone output
- 4 Line level inputs
- New custom design case
- Thermal Cut-Out
- Lifetime warranty against manufacture defects
PRODUCT DETAILS

Amplification circuit
Our engineers have re-engineered the entire ELEX circuit board to optimise performance. MK4 builds on previous Rega designs by using our multi-award-winning Class A/B power amplifier circuit to deliver a powerful 72W per channel into 8Ω loads. This power is provided by a quiet multi-stage linear supply whilst supply rails for digital and analogue sections are galvanically isolated.
Digital Circuit / DAC
The DAC is based closely on the hugely successful Rega DAC-R circuit. The galvanically/optically isolated digital inputs utilise a Wolfson S/PDIF receiver IC to provide exceptional detail and clarity from any connected source. Output is provided by a Wolfson DAC and Rega designed discrete line-driver circuit. Our engineers have worked exceptionally hard to ensure that the analogue side of the circuit is not affected in any way by the introduction of digital inputs.


MM Phono Stage
A high performance Rega designed integrated moving magnet (MM) phono stage is carefully built into the circuit. The RIAA equalisation has been split into two stages to minimise interaction. Polyester capacitors have been used in the signal path and polypropylene capacitors are used in the RIAA equalisation circuits.
Headphone Output
We have taken great care to incorporate the headphone socket on the Elex MK4. This has been configured such that the speaker switching is performed by the output mute relay to avoid obstructing the signal path ensuring no loss of performance when it is not in use.


Custom Case
The new custom case design and construction brings the Elex MK4 inline with the rest of the Rega range and provides improved heat dissipation by using the entire case as an ultra efficient heat sink.
Protection
The Elex MK4 includes Thermal Cut-Out, short circuit protection and DC protection to prevent the risk of damage from excess heat, excessive currents or short circuits.

There’s no other amplifier I’ve tested recently at the price that offers the imperious ability of the Elex Mk4. The latest refreshed Rega therefore has to be seen as a Best in Class.
AV Forums – Ed Selley
PRODUCT REVIEWS

AV Forums Hi-Fi Product of the Year 2023/2024

AV Forums – Jan 2023

The Ear – Jan 2023

Hi-Fi Choice – Editors Choice Award March 2023

AV Forums Aspirational Product of the Year 2023/2024

What Hi-Fi? 5 Stars February 2023

Hi-Fi and Music Store April 2023

Sound Advice full Rega system review November 2023
TECHNICAL SPECIFICATIONS
- Power Amplifier Output (at rated 230/115 V supply voltage): 72 W into 8 Ω
- Power Amplifier Output (at rated 230/115 V supply voltage): 90 W into 6 Ω
- Output Sensitivity (at rated inputs) – Record Output: 164 mV
- Output Sensitivity (at rated inputs) – Pre-amplifier Output: 625 mV
- Power Consumption: 250 W
- Power consumption in ‘off mode’: 0.0 W
- Supported Sampling Rates: 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
- Supported Bit Depths: 16 to 24 bit
- 4 Line level inputs
- 2 x Digital inputs – 1 x optical and 1 x Co-Axial
- Moving magnet (MM) phono stage
- Pre-out and Record Out
- Headphone output (front panel)
- Dimensions (W x H x D): 432 x 82 x 340 mm (D includes loudspeaker terminals)
- Weight: 11 kg
For best audio performance this product needs to reach an optimum temperature for the bias current to stabilise. Therefore, this product does not include a power management function.
Please note: leaving this product on for long periods will result in increased energy consumption.
All Rega products carry a Lifetime Limited Warranty.
Every product we make is designed and assembled in the UK to the highest possible standard. This warranty covers confirmed manufacturing defects. This warranty does not cover wear and tear, or parts that are considered consumable. Any unauthorised modifications or failure to follow the Rega recommended guidelines in the product manual may invalidate the warranty. Due to local laws, warranties may vary by country in which units are sold. Please contact your Rega retailer or distributor for warranty details. Your statutory rights are not affected.
For full technical specifications, download the ELEX MK4 user manual below.




